Improved apparatus por scouring and drying sheet-metal



-of rollers removed.

- in g the sheet-metal, by revolving brushes or cylinders, :and I/employ India-rubber, or other elastic rollers to f diluted .tant

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CHARLES E. L.. HOLMES, OF NEW YORK, N. Y. Letters Patent No. 89,313, dated April 27, 1869; antedated April 20, 1869.

IMPROVE!) APPARATUS FOR SCO'URING- AND DRYING- SHEET-METAL- The Schedule referred to in these Letters Patent and. making part of the same.

To all lw'hom 'it ana/y concern:

Figure 2 is a plan of the same, with the upper range YSimilar letters denote the same parts.

In Letters Patent granted to me July 21, 1868, a machine is described for scouring sheet-metal, land wiping the same, to dry the surface; the object of scouring and drying sheet-metal for the removal of scale and oxidation is also set forth.

The present invention is for accomplishing the same object by theumor otherliquid, either alone for washing, or with sand, or other material for scourforce' hack the Water, and prepare the sheet-metalsurfaceffor being dried as it passes along, and is heated previous to being Wound up. y

In\the drawinga is a vat, to contain water, and into which the roll or sheet\of metal is introduced, as at b.

c c are guide-rollers, for the sheet of metal.

d is a wiping-roller, covered with cloth, or other desired elastic material.

c is a revolving brush, and

f and g are elastic rollers, that press back 'the water from the surface of the sheet-metal.

According to the condition of the metal, so water alone may be employed, or sand, or other scouring material added, and I prefer to use the liquid in a heated State.

From the rollers f g the sheet of metal passes through the drying-chamber lc l.

Ifthe sheet-metal is thick, and -not easily bent, the rollers f g may cause it to travel gradually through the drying-space, or the sheet may be drawn through by the roller h, as it is wound upon it.

The rollers i and An are shown as placed in two ranges, the upper range, n, being in a movable frame, kept down by the springs m, and for convenience in introducing the sheet, the rollers n can be lifted off or'swung back with the box, forming the upper part l, of the drying-space. This is shown as removed in fig. 2.

The rollers c' n are to be heated by steam, or hot air circulating through them, and to avoid scratching the sheet-metal, the rollers t n are made as sleeves, outside of a stationary axle, or pipe, connecting with steam or hot-air. The escape heat may go into the vat a, to warm up the contents.

I prefer to heat the roller h, lin order that the roll of sheet-metal may be kept hot, and insure the per' fect drying of the roll from all moisture When taken off the roller, and thereby avoid the use of heatingovens, heretofore employed for this purpose.

The means for revolving the respective rollers may be of any desired character.

My appar-tus is cheap, strong, and very effective. There is no sawdust employed in wiping ofi' the metal, hence the metal will not have the same appearance, and the dies will not have tlie accumulation upon them of dust to interfere with the cutting operation.

What I claim, and desire to secure by Letters Patent is 17. The elastic rollers or brushes, to wash or scour sheet-metal ou both sides, substantially in the manner specified.

2. The elastic squeezing-rollers c f, in combination with the water-vat a, and drying-chamber It l, substantially as set forth.

3. The Acombination of scouring-mechanism, for cleaning the surface of sheet-metal, with a heatingapparatus for drying the surface of the sheet-metal, with rapidity, previous to its delivery from the machine, as specified.

4. The yielding range of drying-rollers n, tted with springs or weights, to keep them down, in combination with the standing range,f, of rollers, substantially as set forth, so as to accommodate different thicknesses of metal, and to facilitate the introduction of the sheet, substantially as set forth.

5. The drum, or roller h, made hollow, and heated, in combination with the scouring or drying-mechanism, substantially as speciiied, so as to keep the sheetmetal hot while being wound, as specified.

In witness whereof, I have hereunto set my signature, this 18th day of September, A. D. 1868.

OHAS. E. L. HOLMES.

Witnesses:

CHAs. H. SMITH, GEO. D. WALKER. C 

